Bracket



March 1, 1932. L. A. EISENSCHMIDT BRACKET Filed Oct. 9, 1929 Patented Mar. 1, 1932 LOUIS A. EIsEnscHMInn-orfs'rlrours,Missounrji I I Application filed October 9,1929} jjser jia This invention relates tobrackets and more specifically to brackets for ]O1D1I1g together timbers in building scaffolds. r

' i The objectof this invention is the produc-;

tion of a metal bracket for joining together beams of scaffolds so as to hold them 'firmly in position without theuse of nails.

Other objects and advantages of th1 s1nvention'will be apparent from the specification, claims and drawings, in which:

Fig. 1 is a front elevation of a-scaffold sup-j porting a concrete floor, showing the use of my bracket. r I V Fig. 2 is a plan viewof my bracket look ng at it from above.

Fig. 3 is a section along the line 3 3 in Fig. 2. Fig. isa section along the. line k4 in h Fig. 2.

Fig. 5 is a perspective view of my bracket. Fig. 6 is a view showing beams bolted to a modified form of my bracket.

In the construction of floors in concrete buildings, it is necessary that a scaffold be built beneath the floor to support the conorete until it has set. It is customary to erect this scafiold bynailing together beams of which the scaffold is made.

The objection to this method is that the repeated nailing of the beamsto the joists, which is necessary to hold them in place, de-

stroys the timber. In addition to the waste of lumber, a great deal of time is necessary to both nail and'wreck them after each "floor is constructed. v ,1 i

There is another rather costly objection to this method and thatis, owing to the rules of labor unions, common'labor cannot be used in building thescaffolds, and only union carpenters at union wages, are permitted to do this work, which requires no skill, While the work could readily be done with common labor at a very much lower wage rate.

To meet these objections, I have designed a bracket, best shown in Fig. 5, preferably made of sheet metal, first blanked out in the form of a modified Maltese cross, having four points, two of which, designated. as 1 and 2, are turned upwardly at rightangles parallel to each other so as to form a rectangular .The .tworema1n1ng points and '5 are turned downwardly? at' rightangles; so that 7 their faces are parallel :to' each other, ro

vid'ing a re'ctan'g u lar spacetc" snugly t a beam, shown in Fig. lat 6.

It is obviousthat the bracket will firmly hold the beams in place without the use of nails, provided the brackets 'areanchored. or fixed against movement. 7 brackets from moving longitudinally of the beam, triangular portions 7'of the metal To prevent the are turned normal to the fiat, central portion 8 of the bracket, one projectlng in one direction and the otherprojecting in the op posite direction, as clearly shown in Fig. 4.

A modified method of holdingthe beams- .agamst longitudinal movement is provided by the apertures 9 in each one ofthe rectan gular members 1, 2, 4: and5. It is obvious that by boring a hole in the beams a bolt 10 orv other suitable holding member could be inserted.

,The scaffold usually consists of upright members 11 to which crossbeams 12 are rigidly 'aflixed, either by nailing or other suit- I able means. Where a large number of floors of equal height are to be made, it' is obvious I I that the support'forthe scafiold, as above described, can be used over and over again without withdrawing nails. I On top of the beams and disposed at right angles thereto a number of joists-13 are laid and held in place by my brackets instead of? I being toenailed to the beams 12. On top of the'joists 13, floor boards 14 are laid on top of'which concrete 15 is poured and allowed to remain long enough to set. i

WVhen the concrete-has set, the scaffold is readily removed, saving a great deal of time and labor, and the same scaffold canlthen' be used over and over again.

NVhile I have shown my bracketasparticularly adapted to the'purpose of building soafiolds, there are evidently many other places in construction work where they could be used to'great advantage; hence, I donot wish to confine my invention to be used wholly in building scaffolds, but desire itto have as wide an application as the letter andspirit of the patent law will permit.

Having fully described my invention, what I claim as new anduseful and desire to protect by Letters Patent is: 1

A scafl'old bracket of the class described, consisting of a flat surfaced, rectangular base member, .twe fiat {surfaced members integral with said base member and projectingnpwardly at rightangles to the op osite sides of said base member, two flac sm aeedmembers integral with said base member ,and projecting downwardly at rightangles to said base member, and holding means integral With said base member projecting u wardly andadownwardi yif-romsaid base .iI QIIi, .elysaid means being adapted to prevent longitudinal movement of zbetkms engaging said E'bI flCkGt. In witness whereof I have hereunto gaflixed 0 my signature this 24 h :day of August 1929.. 7

LOUIS EFISENSGHMIDT; 

